Data Sheet

RIGOL 3 To Set the Horizontal System
MSO4000/DS4000 User’s Guide
3-10
Horizontal Reference
The horizontal reference is the reference position according to which the screen
waveform expands and compresses horizontally when adjusting HORIZONTAL
SCALE. In Y-T mode (this function is not available in X-Y mode and Roll mode), press
MENU  HorRef in the horizontal control area (HORIZONTAL) to select the desired
reference mode and the default is “Center”.
1． The Center of the Screen
When changing the horizontal time base, the waveform expands or compresses
horizontally around the center of the screen.
2． Trigger Position
When changing the horizontal time base, the waveform expands or compresses
horizontally around the trigger point.
3． User-defined
When changing the horizontal time base, the waveform expands or compresses
horizontally around the user-defined reference position. In the horizontal
direction, the screen can display a maximum of 700 points with the leftmost as
350 and the rightmost as -350.